Gene Expression Regulation in Plant Abiotic Stress Response

This chapter extensively explores the molecular mechanisms governing gene expression in plants facing abiotic stresses, with a specific focus on drought, salinity, extreme temperatures, and nutrient limitations. Recent advancements in molecular and genetic research have significantly enhanced the comprehension of plant stress responses. Plant hormones are highlighted as key regulators of gene expression and stress responses. Additionally, the involvement of reactive oxygen species (ROS) in signaling pathways and transcriptional networks is discussed. The chapter delves into the genetic and molecular mechanisms that modulate gene expression, thereby enhancing plant tolerance to abiotic stress. It underscores the importance of transcription factors and epigenetic regulation in plant responses to stress. In particular, it seeks to elucidate the roles of transcription factors, such as MYB, AP2/ERF, bHLH, and NAC. A deep understanding of these molecular mechanisms and regulatory networks is critical for future research aimed at unraveling the signaling pathways and gene regulatory networks that underpin plant responses to abiotic stress. The ultimate goal is to enhance crop stress tolerance and productivity under challenging environmental conditions.